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UCM BIO 001-01 - Lab Report 9

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Faloni 1Name: Ashlee FaloniPartners: Celeste Mann, Daniela FosterDate Conducted: October 10 , 2018Course and Section: BIO-001L-001Anatomy of a PlantSECTION I – Plant AnatomyACTIVITY IAb. Examine the entire flower. Note the position and numbers of sepals, petals,stamens, and form of pistil. Identify and count each of these structures for each of the two flowers in your possession. Answer these questions for both flowersQ1) How do the size and color of sepals and petals compare?The color of the petals of the first flower examined were pink while the petals were larger compared to the other examined, as well as no sepal. The second flower examined had orange colored petals that were medium length as well as having on sepal, also known as the leaf on its peduncle.Faloni 2Q2) Are the number of sepals and petals the same on each flower?On the pink flower, first flower, examined there appears to be no sepals and there are five pink petals on the flower. Compared to the orange flower, the second flower examined, were it had sixorange petals and one sepal. Q3) How many sepals and petal does each flower have?Mentioned in the question above, the first flower have five pink petals and no sepal and the orange second flower had six petals and one sepal. Q4)How many anthers are there on each flower?The pink flower had five anthers which where the pollen grains come from and where the organisms pick up to pollinate another flower as well as others, such as the wind, to generate the flower population. The orange flower had two anthers and the pink flower has a better chance because it has more pollen to be able to sweep away and continue the population. Q5) Do both flowers have the same pistil structure? Explain.Both flowers do not have the same pistil structure because the pink flower has the pistil structureFaloni 3hidden inside the stigma in order to help keep the eggs protected. While, the orange flower has the pistil structure open and predator may have a chance to destroy that section. ACTIVITY IB – AnthersQ6) Are you able to see dividing cells?Underneath the microscope with the slide given, you are able to see the dividing cells in the stamen because the flower needs to produce more pollen grains which is necessary for reproduction. Q7)Examine a stamen. Can you see where it might rupture to release pollen?Underneath the microscope, in the slide, you can examine a section of purple where it is the center between the dividing cells and they might rupture due to the high exposure levels of humidity and creating internal pressure. Q8)Can you find the pollen sacs?Faloni 4In the slide, you can view the pollen sacs, they look like large circular on the outside of the anther slide as well as the pollen sacs contain the pollen grains for fertilization. Q9) Do they appear full of pollen grains or are they empty?The pollen grains appear to be full of pollen grains because there is a lot of dots in the middle of the purple circles of the pollen sacs. ACTIVITY IC – Flower PistilObserve and identify the structure of the pistil. Answer these questions on your observations.Q10)If the pistil is made up of more than one carpel, is it possible to separate them?If the pistil contain more than one carpel, it is possible to separate the pistil because it has two anthers connecting into one pistil.Q11)Can you see the small hairs around the stigma for trapping pollen grains?Underneath the microscope, you can view the stigma having small hairs from trapping the pollenFaloni 5grains, it looks like fuzz to trap the pollen grains for fertilization.Q12) Approximately how far does the sperm have to travel to get to the egg cell?When the sperm travels through the pollen tubes, it reaches the ovule which is about 6.5cm, the sperm travels to get to the egg cell, into the ovary when the sperm starts at the anther. Q13) Can you see any tissues that look like ovules (describe what you see)?The tissues that look like ovules are small round green structures that resemble seeds and are bound at the bottom of the ovary. SECTION II– Fruit MorphologyACTIVITY IIA– Simple FruitsPart 1:AppleQ1) How many seeds are there?Faloni 6The apple has five seeds in the apple in order to grow into more apple trees because apples are made to protect the seeds inside and travel when eaten to grow more trees.Q2) How many carpels are there? The apple has one carpel because the apple has a stem that the apple needs to grow onto the tree for nurtents.Part 2:SunflowerQ3)Is there an opening at one end of the shell? There is a tiny opening at the top of the sunflower seed because the sperm needs to enter in the opening for fertilization. a.Carefully split a seed open.Q4)Is the seed inside still attached to the shell? The seed inside the shell is still attached to the shell because it was protecting the seed fromFaloni 7predators. Q5) Which end of the shell did the pollen tube enter?The bottom of the shell where the pollen tube enters where the sperm enters the tiny hole for fertilization.Part 3:Pea podQ6) Are all the peas in the pod attached in the same manner and direction?The peas in the pod are all in the same direction when opened because they needs to all get out ofthe protective layering. a.Find the tiny opening on each pea where the pollen tube entered.Q7) How is each pea attached to the ovary wall? The pea that is attached to the ovary wall, the funiculi connectes the pea to the ovary wall.Faloni 8b.Count the seeds in your single pod.Q8) How many seeds are there in the pod?There are six seeds in the pod. ACTIVITY IIB– Aggregate FruitsPart 1:StrawberryQ9) How many carpels are there in the flower?The strawberry has one carpel as the stem for the flower where it grows. Q10) Estimate the number of seeds on the entire fruit? There is about 190 seeds on the entire fruit making it an aggregate fruit because it was formed from several carpels from the same flower. Q 11) What anatomical part of the flower is the green structure at one end of the fruit?Faloni 9The sepal is the part where the green structure is at one end of the fruit. ACTIVITY IIC– Multiple FruitsPart 1: PineappleProcedure a. First examine the uncut pineapple specimen.Q12) How many flowers formed this pineapple? There are about 108 flowers formed on the pineapple because it is a multiple fruit which is a fruitformed from carpels from several flowers. B. Now examine the cut pineapple. Identity the ovaries.Q13) Can you remove an ovary?You can remove the ovary of


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UCM BIO 001-01 - Lab Report 9

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